Background: Psychological stress has been high among healthcare workers on the frontlines fightin... more Background: Psychological stress has been high among healthcare workers on the frontlines fighting coronavirus disease 2019 (COVID-19). Emergency medicine (EM) residents are members of the frontline care teams in the fight against COVID-19, which puts them at a higher risk of psychological stress compared to other medical trainees. This study examined the psychological impact of this pandemic on EM trainee residents in Saudi Arabia.Methods: This cross-sectional quantitative study used a survey sent to EM trainee residents throughout Saudi Arabia. The questionnaire collected demographic data and included questions evaluating stress, anxiety, depression, and burnout experienced while working during the pandemic.Results: Of the 100 respondents eligible for inclusion, 85% were aged between 25 and 30, 32% were in the R1 training level, 52% were training in the Central region of Saudi Arabia, 92% were directly managing patients with COVID-19, 19% had been infected with COVID-19, 54% were ...
Background The World Health Organization (WHO) Surgical Safety Checklist has fostered safe practi... more Background The World Health Organization (WHO) Surgical Safety Checklist has fostered safe practice for 10 years, yet its place in emergency surgery has not been assessed on a global scale. The aim of this study was to evaluate reported checklist use in emergency settings and examine the relationship with perioperative mortality in patients who had emergency laparotomy. Methods In two multinational cohort studies, adults undergoing emergency laparotomy were compared with those having elective gastrointestinal surgery. Relationships between reported checklist use and mortality were determined using multivariable logistic regression and bootstrapped simulation. Results Of 12 296 patients included from 76 countries, 4843 underwent emergency laparotomy. After adjusting for patient and disease factors, checklist use before emergency laparotomy was more common in countries with a high Human Development Index (HDI) (2455 of 2741, 89·6 per cent) compared with that in countries with a middle...
Proceedings - ICCES 2012: 2012 International Conference on Computer Engineering and Systems, 2012
ABSTRACT This paper presents two memristor-based relaxation oscillators. The proposed oscillators... more ABSTRACT This paper presents two memristor-based relaxation oscillators. The proposed oscillators are designed without the need of any reactive elements, i.e., capacitor or inductor. As the "resistance storage" property of the memristor can be exploited to generate the oscillation. The proposed oscillators have the advantage that they can be fully integrated on-chip giving an area-efficient solution. Furthermore, these oscillators give higher frequency other than the existing reactance-less oscillator and provide a wider range of the resistance. The concept of operation and the mathematical analysis for the proposed oscillators are explained and verified with circuit simulations showing an excellent agreement.
Background There is a substantial gap in provision of adequate surgical care in many low- and mid... more Background There is a substantial gap in provision of adequate surgical care in many low- and middle-income countries. This study aimed to identify the economic burden of unmet surgical need for the common condition of appendicitis. Methods Data on the incidence of appendicitis from 170 countries and two different approaches were used to estimate numbers of patients who do not receive surgery: as a fixed proportion of the total unmet surgical need per country (approach 1); and based on country income status (approach 2). Indirect costs with current levels of access and local quality, and those if quality were at the standards of high-income countries, were estimated. A human capital approach was applied, focusing on the economic burden resulting from premature death and absenteeism. Results Excess mortality was 4185 per 100 000 cases of appendicitis using approach 1 and 3448 per 100 000 using approach 2. The economic burden of continuing current levels of access and local quality wa...
Background: Psychological stress has been high among healthcare workers on the frontlines fightin... more Background: Psychological stress has been high among healthcare workers on the frontlines fighting coronavirus disease 2019 (COVID-19). Emergency medicine (EM) residents are members of the frontline care teams in the fight against COVID-19, which puts them at a higher risk of psychological stress compared to other medical trainees. This study examined the psychological impact of this pandemic on EM trainee residents in Saudi Arabia.Methods: This cross-sectional quantitative study used a survey sent to EM trainee residents throughout Saudi Arabia. The questionnaire collected demographic data and included questions evaluating stress, anxiety, depression, and burnout experienced while working during the pandemic.Results: Of the 100 respondents eligible for inclusion, 85% were aged between 25 and 30, 32% were in the R1 training level, 52% were training in the Central region of Saudi Arabia, 92% were directly managing patients with COVID-19, 19% had been infected with COVID-19, 54% were ...
Background The World Health Organization (WHO) Surgical Safety Checklist has fostered safe practi... more Background The World Health Organization (WHO) Surgical Safety Checklist has fostered safe practice for 10 years, yet its place in emergency surgery has not been assessed on a global scale. The aim of this study was to evaluate reported checklist use in emergency settings and examine the relationship with perioperative mortality in patients who had emergency laparotomy. Methods In two multinational cohort studies, adults undergoing emergency laparotomy were compared with those having elective gastrointestinal surgery. Relationships between reported checklist use and mortality were determined using multivariable logistic regression and bootstrapped simulation. Results Of 12 296 patients included from 76 countries, 4843 underwent emergency laparotomy. After adjusting for patient and disease factors, checklist use before emergency laparotomy was more common in countries with a high Human Development Index (HDI) (2455 of 2741, 89·6 per cent) compared with that in countries with a middle...
Proceedings - ICCES 2012: 2012 International Conference on Computer Engineering and Systems, 2012
ABSTRACT This paper presents two memristor-based relaxation oscillators. The proposed oscillators... more ABSTRACT This paper presents two memristor-based relaxation oscillators. The proposed oscillators are designed without the need of any reactive elements, i.e., capacitor or inductor. As the "resistance storage" property of the memristor can be exploited to generate the oscillation. The proposed oscillators have the advantage that they can be fully integrated on-chip giving an area-efficient solution. Furthermore, these oscillators give higher frequency other than the existing reactance-less oscillator and provide a wider range of the resistance. The concept of operation and the mathematical analysis for the proposed oscillators are explained and verified with circuit simulations showing an excellent agreement.
Background There is a substantial gap in provision of adequate surgical care in many low- and mid... more Background There is a substantial gap in provision of adequate surgical care in many low- and middle-income countries. This study aimed to identify the economic burden of unmet surgical need for the common condition of appendicitis. Methods Data on the incidence of appendicitis from 170 countries and two different approaches were used to estimate numbers of patients who do not receive surgery: as a fixed proportion of the total unmet surgical need per country (approach 1); and based on country income status (approach 2). Indirect costs with current levels of access and local quality, and those if quality were at the standards of high-income countries, were estimated. A human capital approach was applied, focusing on the economic burden resulting from premature death and absenteeism. Results Excess mortality was 4185 per 100 000 cases of appendicitis using approach 1 and 3448 per 100 000 using approach 2. The economic burden of continuing current levels of access and local quality wa...
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Papers by Ahmed Mosad